When temperatures plummet to extreme lows|work doesn’t stop—even in the face of snowstorms|high winds|and freezing conditions. This is where the Terraᵐᵈ Stormbreaker really shines. Designed with an eight-layer TERRASPHERE+ᵐᶜ lining|it incorporates Primaloftᵐᶜ and Thermoliteᵐᶜ insulation|along with a heat-reflecting Mylar film. This boot serves as a true thermal shield|having been tested and rated for staggering temperatures as low as -60°C / -76°F. It guarantees exceptional warmth and comfort in environments where only the bold dare to venture.